Nobody cares. Celcius is too much trouble when you've lived by fahrenheit all your life!
Last night, on our local TV last night the weatherman talked to a gal from London (UK) - living here for awhile - She said she didn't know it could get this cold. It was hovering just above zero (Fahrenheit) with a wind chil factor making it 10 below! She was well covered with hat, scarf, mittens, boots. Somebody gave her good advice.
It's too damned COLD!